From b77b7565a6d11611c3f179941d2b95c2d72939dc Mon Sep 17 00:00:00 2001 From: Marcelo Ricardo Leitner Date: Wed, 28 Dec 2016 09:51:56 -0200 Subject: [PATCH] sctp: add pr_debug for tracking asocs not found This pr_debug may help identify why the system is generating some Aborts. It's not something a sysadmin would be expected to use. Signed-off-by: Marcelo Ricardo Leitner Signed-off-by: David S. Miller --- net/sctp/input.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/net/sctp/input.c b/net/sctp/input.c index 458e506ef84b..704ad19c1565 100644 --- a/net/sctp/input.c +++ b/net/sctp/input.c @@ -1229,13 +1229,26 @@ static struct sctp_association *__sctp_rcv_lookup(struct net *net, struct sctp_association *asoc; asoc = __sctp_lookup_association(net, laddr, paddr, transportp); + if (asoc) + goto out; /* Further lookup for INIT/INIT-ACK packets. * SCTP Implementors Guide, 2.18 Handling of address * parameters within the INIT or INIT-ACK. */ - if (!asoc) - asoc = __sctp_rcv_lookup_harder(net, skb, laddr, transportp); + asoc = __sctp_rcv_lookup_harder(net, skb, laddr, transportp); + if (asoc) + goto out; + if (paddr->sa.sa_family == AF_INET) + pr_debug("sctp: asoc not found for src:%pI4:%d dst:%pI4:%d\n", + &laddr->v4.sin_addr, ntohs(laddr->v4.sin_port), + &paddr->v4.sin_addr, ntohs(paddr->v4.sin_port)); + else + pr_debug("sctp: asoc not found for src:%pI6:%d dst:%pI6:%d\n", + &laddr->v6.sin6_addr, ntohs(laddr->v6.sin6_port), + &paddr->v6.sin6_addr, ntohs(paddr->v6.sin6_port)); + +out: return asoc; } -- 2.20.1